One cubic mile of seawater contains about 50 pounds of gold.
79
A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18
An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
243
There are more than 50,000 earthquakes throughout the world every year!
47
The water of the Antarctica is so cold that nothing can rot there.
334
Israel's Dead Sea is 1,312 feet below sea level.
48
Even Antarctica has an area code. It's 672.
58
The 'King Ranch' in Texas is bigger than the state of Rhode Island.
49